1950 search results - page 291 / 390 » Informative sampling for large unbalanced data sets |
157
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ASUNAM
2009
IEEE
15 years 1 months ago
2009
IEEE
With hundreds of millions of users already today, virtual worlds will become an important factor in tomorrow's media landscape. In a virtual world, users are represented by s...
110
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KDD
2006
ACM
16 years 3 months ago
2006
ACM
In this paper, we consider the problem of identifying and segmenting topically cohesive regions in the URL tree of a large website. Each page of the website is assumed to have a t...
121
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CSCW
2002
ACM
15 years 3 months ago
2002
ACM
While systems supporting communities of practice in work organizations have been shown to be desirable many, if not all, are decoupled from daily work practices and tools. This hi...
222
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CORIA
2011
14 years 7 months ago
2011
Named entities play an important role in Information Extraction. They represent unitary namable information within text. In this work, we focus on groups of named entities of the s...
145
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CIKM
2005
Springer
15 years 9 months ago
2005
Springer
Databases of text and text-annotated data constitute a significant fraction of the information available in electronic form. Searching and browsing are the typical ways that users...